package com.atguigu.springcloud.controller;

import com.atguigu.springcloud.entities.CommonResult;
import com.atguigu.springcloud.entities.Payment;
import com.atguigu.springcloud.service.PaymentService;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.web.bind.annotation.*;

import javax.annotation.Resource;
import java.util.List;
import java.util.concurrent.TimeUnit;

@RestController
@Slf4j
public class PaymentController {

    @Resource
    private PaymentService paymentService;

    @Value("${server.port}")
    private String serverPort;

    @Resource
    private DiscoveryClient discoveryClient;

    @RequestMapping(value = "/payment/create")
    public CommonResult create(@RequestBody Payment payment) {

        int result = paymentService.create(payment);
        log.info("****插入结果:" + result);

        if (result > 0) {
            return new CommonResult<>(200, "插入数据库成功，serverPort: " + serverPort, result);
        } else {
            return new CommonResult<>(444, "插入数据库失败", null);
        }
    }

    @GetMapping(value = "/payment/get/{id}")
    public CommonResult<Payment> getPaymentById(@PathVariable("id") Long id) {

        Payment payment = paymentService.getPaymentById(id);
        log.info("****查询结果:" + payment);

        if (payment != null) {
            return new CommonResult<>(200, "查询成功，serverPort: " + serverPort, payment);
        } else {
            return new CommonResult<>(444, "没有对应记录，查询ID: " + id, null);
        }
    }

    /**
     * 对外提供信息
     *
     * @return
     */
    @GetMapping(value = "/payment/discovery")
    public Object discovery() {

        List<String> services = discoveryClient.getServices();

        for (String service : services) {
            log.info("*****element:" + service);
        }
        List<ServiceInstance> instances = discoveryClient.getInstances("CLOUD-PAYMENT-SERVICE");
        for (ServiceInstance instance : instances) {
            log.info(instance.getServiceId() + "\t" + instance.getHost() + "\t" + instance.getPort() + "\t" + instance.getUri());
        }
        return this.discoveryClient;
    }

    @GetMapping(value = "/payment/lb")
    public String getPaymentLB() {

        return serverPort;
    }

    @GetMapping(value = "/payment/feign/timeout")
    public String paymentFeignTimeout() {
        try {
            TimeUnit.SECONDS.sleep(3);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        return serverPort;
    }

    /**
     * 链路追踪
     *
     * @return
     */
    @GetMapping(value = "/payment/zipkin")
    public String paymentZipkin() {
        return "hello，i am paymentZipkin server fallback，O(∩_∩)O哈哈~";
    }

}